Device for truing fruit-jar covers.



No. @61,941 y Patented Feb. 12', 190|.

J. c. HEADMAN s, w. E. cumls. DEVICE FOR TRUING FRUIT JAR COVERS.

(Application led Apr. 16, 1900.)

(No Model.)

N www lllrririen raras rricn.

JAMES C. I-IEADMAN AND VILLIAM E. CURTIS, OF WYANDOTTE, MICHIGAN.

ldlllllc FOR TRUING IFRUlT-JAR CGVERS.

SPECIFICATION forming part of' Letters lPatent No. 667,942, dated February 12, 1901.

Application filed April 16, 1900. Serial No. 12,976. tNo model.)

To @ZZ wtont t may concern;

Be it known that we, JAMES C. HEADMAN and WILLIAME. CURTIS,citiZens of the United States of America, residing at Wyandotte, in the county of lVayne and State of Michigan, have invented certain new and useful Irnproveniente in Devices for Truing Fruit-Jar Covers, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to a device especially designed for the truing of' the flanges of fruitjar covers which have become bent out of shape; and the invention consists in the construction hereinafter described and claimed.

In the drawings, Figure 1 is a perspective view of' the truing device, together with an untrued jar-cover to which it is to be applied. Fig. 2 is a central section through the device in engagement with the cover as in the act of trning. Fig. 3 is a section on line so it, Fig. 2. Fig. a is a perspective view of the truingfinger detached. Fig. 5 is a View similar to Fig. 2, illustrating a modified construction.

The device comprises,essentially, a head having an annularl truing-faoe to which the inner face of the cover-flange is to be conformed, and a presser-finger for engaging the outer face of said flange and adapted in the rotation of the head to press said flange into contact with said truing-face.

As shown in Figs. l and 2 of the drawings, A is a head, preferably in the form of a ring and having an annular truing-face B. C represents lugs projecting from the ring, form.- ing guides for centering it in relation to the cover. D and E are lugs projecting from the opposite side of the ring and foriningahandhold for turning the ring in relation to the cover. Itis obvious, however, that the cover may be turned in place of the ring.

F is a presser-finger secured to the lug D, and, as shown in Figs. l, 2, and 4, comprising a securing-shank c and a flange b. The shank a is adjustably secured to the lug, preferably by a sorewbolt G, which engages with a slotted bearing in the shank and is adapted to clamp the saine to the lug. The flange b is turned to overhang the annular face B and is substantially parallel thereto in crosssection, but in longitudinal section is pref'- erably tangentially arranged in relation to said annular face to form a Wedge-shaped space between.

The device being constructed as described, in the operation of truing a cover the flange thereof is first inserted in the wedge-shaped space between the face B and the linger F. The ring is then turned in relation tothe cover and in a direction to cause the flange H of the cover to travel toward the wider opening between the flange l) and face B, the nger having been previously set, so that the shortest distance between the flange and face B is just the thickness of the flange H. It is obvious that any irregularities in said flange will be pressed out, so that upon the completion of the revolution it will conform perfectly to the face B.

In Fig. 5 a modification is shown in which the finger is provided with a roll I, adapted to roll the cover-flange into contact with the annular face, the parts being otherwise the same as in the construction previously described.

We do not wish to limit ourselves to the particular construction shown, as it is obvious that any device for truing fruit-jar covers by means of alip or roller may be deemed to be within the spirit of our invention.

What we claim as our invention isl. A truing device for jar-cover flanges, comprising a ring A having the truing-face B, the guide-lugs C projecting from one side of said ring, the lugs D and E projecting from the opposite side thereof, and the finger F adjustably secured to the lug D and overhanging the face B for the purpose described.

2. As a new article of' manufacture, a fruing device :for jar-cover flanges, comprising a ring A, having the truing-face B, the guidelugs C projecting from one side of said ring, a handheld projecting from the opposite side thereof and the finger F secured to a lug or projection formed integral with the ring and over-hanging the face B for the purpose described.

3. A truing device for jarcover flanges, comprising aring A, having atruing-f'ace B, the guide-lugs C, projecting from one side of said ring, a handhold projecting from the 0pposite side thereof, and a presserflnger secured to a lug or projection formed on said ring for the purpose described.

IOO

said ring, lugs projecting from the oppom 4. A truing device for jar-cover anges, comprising a ring having an annular bruingfaee, guide-lugs projecting from one side of side of said ring, a presser-finger consistingr ofl a shank adjustably secured to one of said lugs and a Hange overhanging said truingface forming a Wedge-shaped space therebetween for the purpose described.

5. A truing device for jar-cover flanges., comprising a ring having an annular truingl face, guide-lugs projecting from one side 0fsaid ring, a lug or projection projecting from J. A. NQELKE. 

